Reviewed: 16. April 2026
WBC White Blood Cells (Leukocytes)
Unit: 10³/µl
Quick Explanation
WBC (white blood cells) are the cells of your immune system that fight infections. High levels may indicate an infection or inflammation, while low levels can signal a weakened immune response. Always discuss abnormal values with your doctor.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Bacterial infection
- ·Viral infection
- ·Inflammatory disease
- ·Stress
- ·Corticosteroid use
- ·Smoking
Value too low — possible causes
- ·Viral infections (e.g. flu)
- ·Bone marrow disorders
- ·Certain medications
- ·Autoimmune diseases
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →Does this value suggest an infection, and do I need antibiotics?
- →Should the value be rechecked in a few weeks?
- →Could a medication be affecting my white blood cell count?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.